Home / 628,692,610.60-861,311,949.77-605,129,386.60

Finding the Fourth Proportional to 628,692,610.60, 861,311,949.77 and 605,129,386.60

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Solution

The fourth proportional to 628,692,610.60, 861,311,949.77 and 605,129,386.60 is: 829,030,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,692,610.60 : 861,311,949.77 = 605,129,386.60 : x
  2. Step 2: Convert to fraction form
    628,692,610.60/861,311,949.77 = 605,129,386.60/x
  3. Step 3: Cross multiply
    628,692,610.60x = 861,311,949.77 × 605,129,386.60
  4. Step 4: Simplify right side
    628,692,610.60x = 521,205,171,835,570,112
  5. Step 5: Solve for x
    x = 521,205,171,835,570,112/628,692,610.60
  6. Step 6: Final answer
    x = 829,030,217.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.